Weather History for St. Louis, MO

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Thursday, January 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 35 °F 32 °F  
Max Temperature 42 °F 40 °F 72 °F (1894)
Min Temperature 27 °F 23 °F -14 °F (1930)
Degree Days  
Heating Degree Days 30 33  
Month to date heating degree days 505 569  
Since 1 July heating degree days 2104 2334  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 23 °F    
Average Humidity 63    
Maximum Humidity 82    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in 0.08 in 1.02 in (2004)
Month to date precipitation 1.27 1.36  
Year to date precipitation 1.27 1.36  
Snow  
Snow 0.00 in 0.20 in 2.30 in (1960)
Month to date snowfall 0.1 3.1  
Since 1 July snowfall 2.2 8.2  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.37 in    
Wind  
Wind Speed 8 mph (NW)    
Max Wind Speed 18 mph    
Max Gust Speed 22 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 17, 2013 Rise Set
Actual Time 7:17 AM CST 5:06 PM CST
Civil Twilight 6:48 AM CST 5:35 PM CST
Nautical Twilight 6:15 AM CST 6:08 PM CST
Astronomical Twilight 5:43 AM CST 6:39 PM CST
Moon 10:28 AM CST (1/17) 11:53 PM CST (1/17)
Length of Visible Light 10h 47m
Length of Day
9h 49m
Waxing Crescent, 38% of the Moon is Illuminated
Jan 17
Waxing Crescent
Jan 18
First Quarter
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 35.6 °F 30.7 °F 23.0 °F 60% 30.15 in 10.0 mi WSW 5.8 mph - N/A   Overcast
1:51 AM 36.0 °F 33.3 °F 23.0 °F 59% 30.18 in 10.0 mi SW 3.5 mph - N/A   Overcast
2:51 AM 35.6 °F 31.7 °F 23.0 °F 60% 30.18 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
3:51 AM 30.9 °F - 23.0 °F 72% 30.21 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:51 AM 30.9 °F 25.2 °F 23.0 °F 72% 30.23 in 10.0 mi West 5.8 mph - N/A   Scattered Clouds
5:51 AM 30.0 °F 23.2 °F 23.0 °F 75% 30.26 in 10.0 mi NW 6.9 mph - N/A   Partly Cloudy
6:51 AM 30.9 °F 25.2 °F 25.0 °F 79% 30.28 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
7:51 AM 34.0 °F 24.6 °F 28.0 °F 79% 30.32 in 9.0 mi North 13.8 mph - N/A   Scattered Clouds
8:36 AM 35.6 °F 27.1 °F 28.4 °F 75% 30.33 in 9.0 mi North 12.7 mph - N/A   Mostly Cloudy
8:51 AM 34.0 °F 23.8 °F 28.0 °F 79% 30.38 in 9.0 mi North 16.1 mph 20.7 mph N/A   Mostly Cloudy
9:02 AM 35.6 °F 27.1 °F 28.4 °F 75% 30.34 in 9.0 mi North 12.7 mph - N/A   Overcast
9:51 AM 35.1 °F 25.9 °F 27.0 °F 72% 30.40 in 10.0 mi North 13.8 mph 20.7 mph N/A   Mostly Cloudy
10:00 AM 35.6 °F 26.2 °F 28.4 °F 75% 30.36 in 10.0 mi North 15.0 mph 20.7 mph N/A   Mostly Cloudy
10:37 AM 37.4 °F 28.9 °F 26.6 °F 65% 30.37 in 10.0 mi North 13.8 mph 20.7 mph N/A   Scattered Clouds
10:51 AM 37.9 °F 30.0 °F 27.0 °F 65% 30.40 in 10.0 mi North 12.7 mph 20.7 mph N/A   Scattered Clouds
10:57 AM 37.4 °F 29.8 °F 26.6 °F 65% 30.37 in 10.0 mi NNW 11.5 mph - N/A   Mostly Cloudy
11:30 AM 37.4 °F 29.3 °F 26.6 °F 65% 30.37 in 10.0 mi NNW 12.7 mph - N/A   Scattered Clouds
11:51 AM 39.0 °F 30.6 °F 26.1 °F 60% 30.39 in 10.0 mi NNW 15.0 mph 19.6 mph N/A   Partly Cloudy
12:51 PM 39.9 °F 32.1 °F 24.1 °F 53% 30.38 in 10.0 mi NNW 13.8 mph 19.6 mph N/A   Partly Cloudy
1:51 PM 41.0 °F 34.3 °F 21.9 °F 47% 30.37 in 10.0 mi NW 11.5 mph - N/A   Clear
2:51 PM 41.0 °F 33.9 °F 21.0 °F 45% 30.39 in 10.0 mi NW 12.7 mph - N/A   Clear
3:51 PM 39.0 °F 31.0 °F 19.9 °F 46% 30.42 in 10.0 mi NNW 13.8 mph - N/A   Partly Cloudy
4:51 PM 37.0 °F 29.3 °F 19.9 °F 50% 30.44 in 10.0 mi NW 11.5 mph - N/A   Clear
5:51 PM 34.0 °F 27.2 °F 19.9 °F 56% 30.48 in 10.0 mi NW 8.1 mph - N/A   Clear
6:51 PM 33.8 °F - 19.4 °F 56% 30.46 in 10.0 mi Calm Calm - N/A   Clear
7:51 PM 30.9 °F 27.5 °F 19.0 °F 61% 30.50 in 10.0 mi WNW 3.5 mph - N/A   Clear
8:51 PM 30.9 °F 27.5 °F 19.0 °F 61% 30.51 in 10.0 mi NW 3.5 mph - N/A   Clear
9:51 PM 28.0 °F - 19.0 °F 69% 30.53 in 10.0 mi Calm Calm - N/A   Clear
10:51 PM 27.0 °F - 19.0 °F 72% 30.52 in 10.0 mi Calm Calm - N/A   Clear
11:51 PM 27.0 °F 23.0 °F 19.0 °F 72% 30.52 in 10.0 mi WSW 3.5 mph - N/A   Clear